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Bios setup – DFI OT951-D series User Manual

Page 53

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53

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BIOS Setup

USB Confi guration

This section is used to confi gure USB.

Legacy USB Support

Enabled
Enables legacy USB.
Auto
Disables support for legacy when no USB devices are connected.
Disabled
Keeps USB devices available only for EFI applications.

EHCI Hand-off

This is a workaround for OSes that does not support EHCI hand-off. The
EHCI ownership change should be claimed by the EHCI driver.

Device reset time-out

Selects the USB mass storage device start unit command timeout.

Enables Legacy USB
support. AUTO option
disables legacy support if
no USB devices are
connected. DISABLE
option will keep USB
devices available only for
EFI applications.

Aptio Setup Utility - Copyright (C) 2011 American Megatrends, Inc.

Version 2.14.1219. Copyright (C) 2011 American Megatrends, Inc.

USB Confi guration

USB Devices:
1 Drivers, 1 Keyboard, 1 mouse

Legacy USB Support

EHCI Hand-off

USB hardware delays and time-outs:

Device reset time-out

Advanced

[Enabled]

[Enabled]

[20 Sec]



Select Screen



Select Item

Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous

Values

F3: Optimized

Defaults

F4: Save & Exit
ESC: Exit